package com.platform.service;

import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.UnsupportedEncodingException;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;
import java.security.MessageDigest;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.springframework.stereotype.Service;

@Service
public class ApiKdniaoService {

  //DEMO
  public static void main(String[] args) {
    ApiKdniaoService api = new ApiKdniaoService();
    try {
      List result = api.getOrderTracesByJson("YD", "3907732889203");
      System.out.print(result);

    } catch (Exception e) {
      e.printStackTrace();
    }
  }

  //电商ID
  private String EBusinessID = "1432027";
  //电商加密私钥，快递鸟提供，注意保管，不要泄漏
  private String AppKey = "ff8ad728-3a5f-4500-b795-e146798be34b";
  //请求url
  private String ReqURL = "http://api.kdniao.com/Ebusiness/EbusinessOrderHandle.aspx";

  /**
   * Json方式 查询订单物流轨迹
   */
  public List getOrderTracesByJson(String expCode, String expNo) {

    List<Map<String, Object>> resultObj = new ArrayList();

    try {

      String requestData =
          "{'OrderCode':'','ShipperCode':'" + expCode + "','LogisticCode':'" + expNo + "'}";

      Map<String, String> params = new HashMap<String, String>();
      params.put("RequestData", urlEncoder(requestData, "UTF-8"));
      params.put("EBusinessID", EBusinessID);
      params.put("RequestType", "1002");
      String dataSign = encrypt(requestData, AppKey, "UTF-8");
      params.put("DataSign", urlEncoder(dataSign, "UTF-8"));
      params.put("DataType", "2");

      String result = sendPost(ReqURL, params);

      JSONObject jsonObject = (JSONObject) JSONObject.parse(result);
      if (null != jsonObject) {
        JSONArray objects = jsonObject.getJSONArray("Traces");
        for (Object obj : objects) {
          JSONObject jsonObj = (JSONObject) obj;
          Map<String, Object> temp = new HashMap();
          temp.put("AcceptTime", jsonObj.getString("AcceptTime"));
          temp.put("AcceptStation", jsonObj.getString("AcceptStation"));
          resultObj.add(temp);
        }
      }
    } catch (Exception e) {
      e.printStackTrace();
    }
    return resultObj;
  }

  /**
   * MD5加密
   *
   * @param str 内容
   * @param charset 编码方式
   */
  @SuppressWarnings("unused")
  private String MD5(String str, String charset) throws Exception {
    MessageDigest md = MessageDigest.getInstance("MD5");
    md.update(str.getBytes(charset));
    byte[] result = md.digest();
    StringBuffer sb = new StringBuffer(32);
    for (int i = 0; i < result.length; i++) {
      int val = result[i] & 0xff;
      if (val <= 0xf) {
        sb.append("0");
      }
      sb.append(Integer.toHexString(val));
    }
    return sb.toString().toLowerCase();
  }

  /**
   * base64编码
   *
   * @param str 内容
   * @param charset 编码方式
   */
  private String base64(String str, String charset) throws UnsupportedEncodingException {
    String encoded = base64Encode(str.getBytes(charset));
    return encoded;
  }

  @SuppressWarnings("unused")
  private String urlEncoder(String str, String charset) throws UnsupportedEncodingException {
    String result = URLEncoder.encode(str, charset);
    return result;
  }

  /**
   * 电商Sign签名生成
   *
   * @param content 内容
   * @param keyValue Appkey
   * @param charset 编码方式
   * @return DataSign签名
   * @throws UnsupportedEncodingException ,Exception
   */
  @SuppressWarnings("unused")
  private String encrypt(String content, String keyValue, String charset)
      throws UnsupportedEncodingException, Exception {
    if (keyValue != null) {
      return base64(MD5(content + keyValue, charset), charset);
    }
    return base64(MD5(content, charset), charset);
  }

  /**
   * 向指定 URL 发送POST方法的请求
   *
   * @param url 发送请求的 URL
   * @param params 请求的参数集合
   * @return 远程资源的响应结果
   */
  @SuppressWarnings("unused")
  private String sendPost(String url, Map<String, String> params) {
    OutputStreamWriter out = null;
    BufferedReader in = null;
    StringBuilder result = new StringBuilder();
    try {
      URL realUrl = new URL(url);
      HttpURLConnection conn = (HttpURLConnection) realUrl.openConnection();
      // 发送POST请求必须设置如下两行
      conn.setDoOutput(true);
      conn.setDoInput(true);
      // POST方法
      conn.setRequestMethod("POST");
      // 设置通用的请求属性
      conn.setRequestProperty("accept", "*/*");
      conn.setRequestProperty("connection", "Keep-Alive");
      conn.setRequestProperty("user-agent",
          "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
      conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
      conn.connect();
      // 获取URLConnection对象对应的输出流
      out = new OutputStreamWriter(conn.getOutputStream(), "UTF-8");
      // 发送请求参数
      if (params != null) {
        StringBuilder param = new StringBuilder();
        for (Map.Entry<String, String> entry : params.entrySet()) {
          if (param.length() > 0) {
            param.append("&");
          }
          param.append(entry.getKey());
          param.append("=");
          param.append(entry.getValue());
          //System.out.println(entry.getKey()+":"+entry.getValue());
        }
        //System.out.println("param:"+param.toString());
        out.write(param.toString());
      }
      // flush输出流的缓冲
      out.flush();
      // 定义BufferedReader输入流来读取URL的响应
      in = new BufferedReader(
          new InputStreamReader(conn.getInputStream(), "UTF-8"));
      String line;
      while ((line = in.readLine()) != null) {
        result.append(line);
      }
    } catch (Exception e) {
      e.printStackTrace();
    }
    //使用finally块来关闭输出流、输入流
    finally {
      try {
        if (out != null) {
          out.close();
        }
        if (in != null) {
          in.close();
        }
      } catch (IOException ex) {
        ex.printStackTrace();
      }
    }
    return result.toString();
  }


  private static char[] base64EncodeChars = new char[]{
      'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H',
      'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P',
      'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X',
      'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f',
      'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n',
      'o', 'p', 'q', 'r', 's', 't', 'u', 'v',
      'w', 'x', 'y', 'z', '0', '1', '2', '3',
      '4', '5', '6', '7', '8', '9', '+', '/'};

  public static String base64Encode(byte[] data) {
    StringBuffer sb = new StringBuffer();
    int len = data.length;
    int i = 0;
    int b1, b2, b3;
    while (i < len) {
      b1 = data[i++] & 0xff;
      if (i == len) {
        sb.append(base64EncodeChars[b1 >>> 2]);
        sb.append(base64EncodeChars[(b1 & 0x3) << 4]);
        sb.append("==");
        break;
      }
      b2 = data[i++] & 0xff;
      if (i == len) {
        sb.append(base64EncodeChars[b1 >>> 2]);
        sb.append(base64EncodeChars[((b1 & 0x03) << 4) | ((b2 & 0xf0) >>> 4)]);
        sb.append(base64EncodeChars[(b2 & 0x0f) << 2]);
        sb.append("=");
        break;
      }
      b3 = data[i++] & 0xff;
      sb.append(base64EncodeChars[b1 >>> 2]);
      sb.append(base64EncodeChars[((b1 & 0x03) << 4) | ((b2 & 0xf0) >>> 4)]);
      sb.append(base64EncodeChars[((b2 & 0x0f) << 2) | ((b3 & 0xc0) >>> 6)]);
      sb.append(base64EncodeChars[b3 & 0x3f]);
    }
    return sb.toString();
  }

}
